package xxs;

import java.util.Scanner;

class ArrayUtils {
	public static double findMax(double[] arr,int begin, int end)throws IllegalArgumentException{
		if(begin<0){
			throw new IllegalArgumentException("begin:"+begin+" < 0");
		}
		if(begin>=end){
			throw new IllegalArgumentException("begin:"+begin+" >= end:"+end);
		}
		if(end > arr.length){
			throw new IllegalArgumentException("end:"+end+" > arr.length");
		}
		double max = arr[begin];
		for (int i = begin; i < end; i++) {
			if (arr[i] > max) max = arr[i];
		}
		return max;
	}
}
public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		double[] array = new double[n];
		for (int i = 0; i < array.length; i++) {
			array[i] = sc.nextInt();
		}
		while(true){
			try{
				int begin = Integer.parseInt(sc.next());
				int end = Integer.parseInt(sc.next());
				System.out.println(ArrayUtils.findMax(array, begin, end));
			}catch(NumberFormatException e){
				break;
			}catch(IllegalArgumentException e){
				System.out.println(e);
			}
		}
		try {
		     System.out.println(ArrayUtils.class.getDeclaredMethod("findMax", double[].class,int.class,int.class));
		} catch (Exception e1) {
		}
		sc.close();
	}

}
